Reservoir pressure can be divided into normal pressure, abnormal high pressure and abnormal low pressure in terms of the ratio between formation pressure and hydrostatic pressure.
根据地层压力与静水压力的比值大小，可将地层压力分为异常高压、异常低压和正常压力三种压力状态。
The distribution of abnormal high pressure is relative to Eogene gypsolith and salt layers. Huge gypsolith and salt layers are the important condition for the formation of abnormal high pressure.
异常高压的分布和古近系的膏盐岩分布密切相关，巨厚的膏盐层盖层是形成异常高压的重要条件。
Abnormal high formation pore pressure and sloughing stress exist in the south area of Junggar Basin, and mud making and composite ion contamination is also remarkable in this area.
新疆准噶尔盆地南缘地区安集海河组存在超高压、强造浆、强坍塌应力、复合离子污染等问题。
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